Mandrel support



Nov. 22, 1949 E. G. HILL 2,489,134

MANDREL SUPPORT Original Filed July 12, 1945 INVE TOR. f

ATTORNEYS Patented Nov. 22, 1949 MANDREL SUPPORT Earl G. Hill, Pulaski,Va., assignor to Textile Appliance Corporation, New York, N. Y., acorporation of New York Original application July 12, 1945, Serial No.

Divided and this application August 19, 1947, Serial No. 769,464

3 Claims, (Cl. 242-43) This invention relates to machines for windingpackages of yarn, thread, etc., and is concerned more particularly withnovel means for use in a winding machine for supporting the maninv ntionare illustrated in use in a drum windins machine of the cons ruction dislosed in the co-p nding application. Such a machine in, cludes asupporting structure made up of vertical drels for the tubes or cores,upon which the yarn 5 frame members and longitudinal members H is wound.The new mandrel supports are of simof suitable construction, A shaft 12is mounted ple, inexpensive construction, and the mandrels in hearin son the structure to extend lengthwise may be easily inserted in andremoved from the of the latter and th shaft is provided at inter..-supports. Also the supports occupy little space in vals withconventional cork driving rolls 1.3,. The a direction lengthwise of themandrel supported 10 shaft is oontinuously rotated by suitable meansthereby, so that, when the supports are employed (not shown) A mandrelI4 is mounted for in a machine having a plurality of winding unitstation opposite each .QQrk roll L3 and, prior to the in a line, theunits may be placed closer together winding ope ation, .a tube 15 isslipped over the than would be possible if certain prior supportsmandrel. The mandrel is provided withgudgeons were used. 115 5 t it en sand the gudseons re inserted in The new mandrel support is intendedprimarily the mandrel supports I1, I 8. for use in winding machines ofthe type, in which The mandrel supports I] are disposed at oppothemandrel is rotated by a rotary member, such site ends of the machine andeach such support as a driven cork roll, in constant contact with theincludes a standard 1.9 mounted on the support.- suriace of the yarnpackage being produced, an ing structure at one side of shaft l2 andbeyond example of such a machine being that disclosed the outer ends ofthe cork rolls It at the ends in my co-pending application, Serial No.504,627, of the machine. At the upper end of its standfiled July 12,1%5, now Patent No. 2,475,895, is an. is, each support I] is formed witha slot 2.0 sued July 12, 1949 of which this application is a in its sideface, the slot extending downwardly division. The supports are mountedat opposite in a direction away from the shaft l2. The upper ends ofeach cork roll and each support includes end of the slot lies in ahorizontal plane through a standard having a slot in one side face, theshaft and is closed by a wall 2!. The bottom slot extends transverselyto the axis of the cork of the slot is closed by a vertical wall 22 and,roll and downwardly therefrom at a low angle. at the lower end of theslot, there is an entrance The bottom of the slot and its upper end areopening into the slot formed between the lower closed and, at the lowerend of the slot, there is end of the top wall 23 of the slot a verticalan entrance opening into the slot through the wall 24 rising from thelower wall 25 of the slot top wall thereof. The support may be made by aand extending upwardly above the top wall 23,. casting operation and thesupports, which are to lhe mandrel supports [8 lie between the and liebetween a pair of winding units in a multiple supports H and oppositethe spaces between ad.- unit machine, may be combined into one, such.l'acent cork rolls. supports 18 are .of the coma compound supporthaving slots lyin back to pound type and each such support includes aback with their openings facing in opposite standard 2,6 formed at itsupper end with a pair directions. of slots separated by a common bottomwall 21, For a better understanding of the invention the slots openinglaterally in opposite directions reference may be had to theaccompanying drawfrom that wall. The slots of support It extend ing, inwhich downwardly in a direction away irom the shaft [2 Fig. 1 is a planview of a portion of a winding and have lower end walls similar to wallat and machine equipped with the new supports; entrance openings throughthe upper walls of Fig. 2 is a view of the machine in front .eletheslots at the lower ends thereof. The upper vation; ends of the .slots ofsupport L8 are closed and lie Fig. 3 is a sectional view through asingle winda horizontal plane through shaft l2, ing unit, on the line3-3 of Fig. 4,; In order to place ,a mandrel with a tube there- Fig. 4is a sectional view on the line 4-4 of on in position in .the supports,the guglgeons is Fi 3; o t a el re ins ed hrou h the entrance F 5 is avi w in perspe t e sh wi t up r o n n nt t ower nds o th sl ts in a pairpart of one mandrel support; and of mandrel supports at opposite ends ofa cork Fig. 6 is a sectional view on the line 5-45 of roll. The mandreland ,tube are then moved up- Fig. 1. w ly n the uppo ts to b ing t e uinto In the drawing, the mandrel supports of the o ta t w the co k rollL3 In th mach ne illustrated, the mandrel is moved toward the cork rollby a frame, which comprises a plate 23 provided at its lower cornerswith brackets 29 pivotally attached at 30 to brackets 3| secured to thelongitudinal frame members I I. At its upper end, the plate is providedwith brackets 32 projecting toward the cork roll, and a roller 33 ismounted between brackets 32 in position to bear against the tube IE onthe mandrel or the package being wound on the tube. Roller 33 is spacedfrom the adjacent face of plate 28 and a thread guiding rod 34 ismounted in brackets 35 on the outer face oi. plate 28.

A traverse bar 36 is mounted in suitable guides (not shown) on top ofthe longitudinal member II to extend parallel to shaft I2 and the bar isreciprocated endwise, during the operation of the machine, by means (notshown). Opposite each cork roll, the traverse bar 36 carries a pair ofspaced brackets 31 and an arm 38 is pivotally mounted in each pair ofbrackets 31. For this purpose, the arm is formed at its lower end with aloop encircling a pin 39 having coned ends, which are receivable inopenings in the brackets. The axis. about which arm 33 swings, iscoincidental with the axis, about which plate 28 swings, so that, as thelate swings outwardly, the arm 38 may swing with it and remain parallelthereto.

A lever 4i! is pivoted at 4| on the arm 38 below the top thereof, thelever being of bell crank form and having a short horizontal leg and along vertical leg. The short leg is provided with a roller 42 extendingfrom the rear face of the lever and the vertical leg carries a threadguide 43, which extends upwardly between roller 33 and plate 28.

A guide plate 44. is pivotally mounted at 45 on the inner face of plate48 and the guide plate has a longitudinal slot 46, in which travelsroller 42 on lever 40. A cam plate 41 is attached to one of the brackets30, in which the plate 23 is mounted, and extends outwardly at rightangles to the plane of plate 28 and throu h an'opening 48 therein. Thecam is engaged by one end of the guide plate 44, and the guide plate isheld in contact with the top surface of the cam by a spring 4e attachedat one end to plate 2.3 and hearing at its free end in a slot in the uper edge of the portion of guide plate 44 encircling the pivot 45. Nearits outer end, the cam is formed with a notch 50, into which the end ofguide plate 44 may drop when the frame is swung outwardly suficientlvfar from the package on the mandrel. In order to release the guide platefrom notch 54, the plate is provided near one end with a pin whichextends through an opening 52 in plate 28. By raising the pin, the endof the guide plate may be released from the notch.

,Each frame is urg d to swing toward its cork roll by a spring 53attached at one end to plate 23 and at its other end to a fixed part ofthe structure of the machine. The s ring acts to cause roller to contactwith tube IE on the mandrel or with the package being wound on the tubeand the tube or package is thus held in contact with the cork roll 13 sothat the mandrel is rotated by the roll. As the frame swings away fromthe cork roll during the growth of the packa e on the tube, roller 33engages the thread guide 43 and this causes arm 38 and lever 40 to swingwith the frame.

At the start of operation of the winding machine, each frame is swungaway from its cork roll, until the guide plate 44 of the frame dropsinto the notch in the associated cam 50. As the frame swings away fromthe cork roll, the mandrel gudgeons roll down the slots in the supports,until they strike the lower end walls 24 of the supports. The mandrelcan be removed from its mounting and a tube slipped over it, after whichthe mandrel is placed back in position with its gudgeons in the Slots inthe supports and engaging the faces of the end walls 24 of the slots.When the guide plate 44 of the frame is released from the notch, thespring 53 swings the frame toward the cork roll and, in this movement ofthe frame, its roller 33 engages the tube l5 and moves the tube andmandrel upwardly, along the supports, until the tube makes contact withthe cork roll 13. The thread 54 from the supply is then passed upwardlyover guide bar 34, through the thread guide 43, and over roller 33 tothe tube on the mandrel.

When the machine is started, the traverse bar 36 is reciprocated andmoves each arm 38, each lever 44', and each thread guide 43 with it. Asa lever 40 moves along the face of its plate 28, the engagement of theroller 42 on the lever in the slot 46 in guide plate 44 causes abackward rocking of lever 40 at each end of each stroke of the traversebar. In such backward rocking of lever 40, its upper end moves in adirection opposite to that in which the lever as a whole is movingrelative to its late 28. The extent of such rocking movement of thelever depends on the inclination of the slot 46 in the guide 44 for thatlever, and the inclination of the slot is determined by the shape of cam41. As the package on the tube on a mandrel builds up, the axis of themandrel moves away from its cork roll and the frame is moved outwardly.This causes the guide plate 44 on the frame to move along the surface ofits cam 41, and, by properly forming the cam, the traverse of the threadguide lengthwise of its mandrel is progressively shortened, so that thepackage formed on the tube on the mandrel has tapered or coned ends.

When the winding of the package has been completed, the frame for themandrel of the package is moved outwardly, until its guide plate 44drops into the notch 50 on the cam. At that time, the gudgeons of themandrel have rolled down in the slots in their supports and restopposite the entrance openings into the slots and against the walls 24at the ends of the slots. The mandrel with the full package thereon canthen be moved, the package taken off the mandrel and replaced by anempty tube, and the mandrel gudgeons may then be put back into the lowerends of the slots. When the guide plate 44 of the frame is released fromthe notch, the frame swings toward the cork roll and its roller 33 movesthe mandrel and tube upwardly along thesupports, until the tube engagesthe cork roll. The insertion of a mandrel into the supports and itsremoval therefrom are thus simple operations, and, when a mandrel hasbeen mounted in its supports, it is brought automatically into thedesired relation with its cork roll by the action of the frameassociated with that roll.

I claim: a

1. In a winding machine having a drum rotating on a horizontal axis anda mandrel for a core on which a package is to be wound, the combinationof a pair of members lying at one side of the drum and formed with slotsin their opposedfaces for receiving the ends of the mandrel, the slotslying parallel to each other and normal to the axis of 'the drum andextending downwardly in a direction away from the drum at a small angleto the horizontal, the upper ends of the slots lying approximately in ahorizontal plane through the axis of the drum and the lower ends of theslots being closed, entrance openings in the tops of the members leadinginto the slots near the lower ends thereof, and means for urging amandrel having its ends in the slots in the members into contact withthe drum, said means including a plate pivotally mounted between saidmembers on an axis parallel to and at a lower level than the axis of thedrum, spring means acting on the plate and tending to swing its upperend toward the drum, and a roller mounted on the plate for rotation on ahorizontal axis near its upper end.

2. In a winding machine having a drum rotating on a horizontal axis anda mandrel for a core on which a package is to be Wound, the combinationof a pair of mandrel supports lying at one side of the drum and formedwith slots in their opposed faces for receiving the ends of the mandrel,the slots lying parallel to each other and normal to the axis of thedrum and having their ends closed, the upper ends of the slots lyingapproximately in a horizontal plane through the axis of the drum and theslots extending downwardly therefrom at a small angle to the horizontal,entrance openings in the tops of the supports leading into the slotsnear the lower ends thereof, a plate pivotally mounted on a horizontalaxis below the level of the drum axis and lying between vertical planesthrough the supports, a spring connected to the plate and tending toswing it so that its upper end approaches the drum, and latch means forholding the plate outwardly from the drum beyond the lower ends of theslots.

3. In a winding machine having a drum rotating on a horizontal axis anda mandrel for a core on which a package is to be wound, the

combination of a pair of mandrel supports lying at one side of the drumand formed with slots in their opposed faces for receiving the ends ofthe mandrel, the slots lying parallel to each other and normal to theaxis of the drum and having their ends closed, the upper ends of theslots lying approximately in a horizontal plane through the axis of thedrum and the slots extending downwardly therefrom at a small angle tothe horizontal, entrance openings in the tops of the supports leadinginto the slots near the lower ends thereof, a plate pivotally mounted ona horizontal axis below the level of the drum axis and lying betweenvertical planes through the supports, a roller mounted near the upperend of the plate on the side of the plate opposed to the drum forrotation on a horizontal axis, a spring connected to the plate andtending to swing it so that its upper end approaches the drum, and latchmeans for holding the plate outwardly from the drum beyond the lowerends of the slots.

EARL G. HILL.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 339,796 Manning Apr. 13, 1886462,665 Dick et al Nov. 3, 1891 976,698 Ryon Nov. 22, 1910 1,950,159Berry Mar. 6, 1934 2,237,654 Cohn et a1 Apr. 8, 1941 FOREIGN PATENTSNumber Country Date 3,580 Great Britain Sept. 12, 1876 4,568 GreatBritain Jan. 8, 1898

